I have never seen anything like it. Pope Francis' unpublished encyclical on climate change has drawn more attention than almost any other unseen document ever anticipated. And messages in response to the unknown have been both positive and negative.

Editor's Note: Later this summer, Pope Francis will release his encyclical on the environment and human ecology. The highly anticipated teaching document will be the first from a pope to focus specifically on creation and human relationship with it.

The Vatican on Wednesday quietly confirmed the title of Pope Francis’ hotly anticipated upcoming encyclical letter on environmental issues while releasing details of a press conference to be held before its release June 18.

When graduating seniors at Santa Clara University, in Santa Clara, Calif., bid farewell June 13 to their alma mater, many will have signed onto a pledge to carry their school’s social and environmental consciousness into their future careers.